diff --git a/code/show_trans_progress.py b/code/show_trans_progress.py
index 26dd690..d3dc96d 100644
--- a/code/show_trans_progress.py
+++ b/code/show_trans_progress.py
@@ -4,12 +4,12 @@ import time
 from dotenv import load_dotenv
 import pandas as pd
 
-def get_progress(con):
+def get_progress(dt):
     query = 'SELECT count(*) from data_table'
-    res = pd.read_sql_query(query, con)
+    res = pd.read_sql_query(query, dt.con)
     total = res['count'][0]
     query = 'SELECT count(*) from data_table where content_en is not null'
-    res = pd.read_sql_query(query, con)
+    res = pd.read_sql_query(query, dt.con)
     progress = res['count'][0]
     return progress, total
 
@@ -18,13 +18,13 @@ if __name__ == '__main__':
     try:
         with Data_table() as dt:
             # continously update progress bar
-            progress, total = get_progress(dt.con)
+            progress, total = get_progress(dt)
             with tqdm(total=total, initial=progress) as pbar:
                 while True:
                     pbar.n = progress
                     pbar.refresh()
                     time.sleep(1)
-                    progress, total = get_progress(dt.con)
+                    progress, total = get_progress(dt)
     except Exception as e:
         print(f'error occurred: {e}')
     except KeyboardInterrupt: